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Applying standards to readymade spectacles used in low-resource countries.

Jacqueline Ramke1, Anna Palagyi, Renee du Toit

  • 1The Fred Hollows Foundation New Zealand, Auckland, New Zealand.

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|August 12, 2009
PubMed
Summary

Standards for readymade spectacles in low-resource countries were tested. Quality varied by power, and supplier feedback improved performance, showing standards are applicable for eye care programs.

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Area of Science:

  • Ophthalmology
  • Public Health
  • Materials Science

Background:

  • Readymade spectacles are crucial for eye care programs in low-resource settings.
  • Standardized quality assessment is needed to ensure effective and durable eyewear.
  • Previous standards for spectacles lacked specific applicability testing in resource-limited environments.

Purpose of the Study:

  • To evaluate the feasibility of applying proposed standards for readymade spectacles.
  • To assess standards related to appearance, construction, optical quality, performance, and durability.
  • To determine the utility of these standards for eye care programs in low-resource countries.

Main Methods:

  • Procured readymade spectacles from three suppliers for an eye care program in Timor-Leste.

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  • Tested 250 spectacles (+3.00 to -3.00 DS) and 100 spectacles (+/-3.50 to +/-4.00 DS), plus higher powers.
  • Assessed spectacles against proposed standards using basic equipment; provided supplier feedback.

    • Main Results:

    • All standards except impact resistance were testable.
    • Spectacle cost did not correlate with quality.
    • Higher power spectacles showed a 65% failure rate, while low power had 2.8% failure; quality improved with supplier feedback.

    Conclusions:

    • Proposed standards are applicable for readymade spectacles in low-resource settings.
    • A combination of batch testing and program evaluation, with supplier interaction, can ensure spectacle quality.
    • Limited equipment and skills are sufficient for eye care programs to apply these standards.